OSHA standard 1910.147 The control of hazardous energy (lockout/tagout) covers the servicing and maintenance of machines and equipment in which the unexpected energization or startup of the machines or equipment, or release of stored energy, could harm employees. This standard establishes minimum performance requirements for the control of such hazardous energy.
The lockout/tagout (LOTO) standard was the sixth most frequently cited OSHA standard during the time period October 2013 through September 2014. Federal OSHA issued 3,081 citations and conducted 1,791 inspections related to the LOTO standard during that time period and issued citations totaling $9,734,914.